Coke-oven door.



No. 871,421. PATENTED NOV. 19, 1907.

H. KOPPERS. COKE OVEN DOOR.

APPLIOATION FILED NOV. 10. 1906.

2 SHEETS-SHEET 1.

No. 871,421. PATENTBD Nov. 19, 1907. H. KOPPBRS.

COKE OVEN DOOR.

APPLIOATION FILED Nov. 10.1906.

2 SHEETS-SHEET 2.

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UNITED sTATEs PATENT oEEIoE.

HEINRICH KOPPERS, OF ESSEN-ON-THE-RUHR, GERMANY.

COKE-OVEN DOOR.

Specification of Letters Patent.

Patented Nov. 19, 1907.

Application iiled November l0. 1906. Serial No. 342.822.

To all whom it may concern:

Be it known that I, HEINRICH KoPPERs, a citizen of Germany, residing at Essen-onthe-Ruhr, Germany, have invented new and useful Improvements in Coke-Oven Doors,

In the accompanying drawings: Figure lA is a vertical section through part of a cokeoven provided with my improved door; Fig. 2 a detail showing the connection between door proper and casing; Fig. 3 a front view of part of the oven, and Fig. 4 a plan, partly in section thereof.

'I he oven b, is provided with a number ot coking chambers h, arranged side by side.

These chambers vare closed during the coking process by outer doors n, engaging corresponding box-like casings or door frames c. rlhe latter form a continuation ci' the coking chambers and are secured in front of the oven to vertical channel irons or uprights a, that flank the mouth of each chamber. In order to prevent the heat of the coking chambers from directly influencing casing c, and door n, shields or inner doors'i, are interposed between the mouths oi chambers 7i., and doors n. Each shield i, is received Within a flaring antechamber of coking chamber h, said antechamber being formed by a recess d, in the iront wall of the oven. This recess extends upwardly between uprights a, and is closed in front above casing c, by a plate e, fastened to the inner side of such uprights. In rder to hold shield i, in contact with its seat, the rear wall of recess d, is

slightly inclined, as shown in Fig. 1. At its top, recess d, is closed by a ilanged lid g, dippinlg into a water trough f, to Jform a liquid sea Doors fn, are normally held against the front of casing c, by a suitable locking device o. In order to Jform a tight joint between door` and casing, the latter has va flange m, adapted to enter acorresponding groove or recess g, of door n. I/Vithin recess g, is seated an endless tube r, made of rubber, or other iiexible material. 'lube 1', is by pipe p, connected to a suitable compressed air supply, (not shown). It will thus be seen that when door n, is locked against casing c, and compressed airis admitted into tube r, the latter will be expanded to form a tight joint between doorand casing. Casing o, may be cooled by ducts S, formed in its walls and connected to a cold water supply, (not shown).

In addition to shield i, which prevents the heat from directly influencing casing c, and door n, I provide means for admitting a cooling medium into the chamber formed by casing c, and recess d, (Fig. l). For this purpose I preferto use the cooled gases delivered under slight pressure from the gas coolers, (not shown), and passing into pipe .u. The latter extends along the front wall of oven b, above casings c, and is connected by branches t, controlled by cocks t', with recesses d. By opening one of the cocks t', gas under pressure will enter through recess d, into casing c. But as shield i, does not close gas-tight against its seat, a small part of' the gas contained in casing c, will pass into chamber h, so that cooled gas will constantly enter casing c, from tube u, through branch t, and recess d. The slight excess of pressure in casing o, over that in chamber h, prevents the hot gases in the latter from entering casing c, so that no deposits from such hot gases can be formed in casing c.

In front of oven b, extends a pit o, provided with rails w, supporting a car or movable platform x. If it is desired to remove the coke from a chamber h, platform m, is brought opposite said chamber, door a, is re- "\moved and a lid y, on platform x, is folded over the gap formed between casing c, and platform A crane Z, traveling on ralls k,

`,on the top of oven b, is now moved above the chamber to be emptied.

Lid g, is removed and the chain Z, of crane Z, is secured to shield i. By operating the crane, shield i, is raised' into the position shown in dotted lines in Fig. 1. 'Ihe coke is now removed from chamber h, across platform fr, to the coke storing floor e.

I claim:

LA coke oven provided with a coking chamber, a door-frame, an intervening antechamber which is open at the top, a iire shield in the ante-chamber engaging the coking chamber, a door engaging the doorframe, and a movable lid adapted to close the top of the ante-chamber, substantially as specified.

2. A coke oven provided with a coking chamber, a door-frame, an intervening ilaring ante-chamber which is open at the top,

a re shield in the ante-chamber engaging4 the coking chamber, a door engaging the chamber, and a 1i uid-seal for said lid, sb- 10 door-frame, and a movable lid adapted t-o stantially as speci ed. n

close the top of the Haring ante-chamber, Signed by Ine at New York city, (Manhatsubstntiay as specieda d h k I tam) N. Y., this first day of November 1906.

3. co e-oven provi e .Wit a co in chamber having a flaring antechamber, a r HEINRICH KOPPEL S' shield received thereby7 a casing in front of Witnesses:

the antechamber, a door engaging the'casing, FRANK V. BRlEsEN,

a lid adapted to close the top of the ante- WILLIAM SCHULZ. 

